The Colours of Animals. 



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9. Every one must have observed that these large 

 caterpillars as, for instance, that of the small 

 Elephant Hawk-moth (fig. 20) have a sort of 

 uncanny poisonous appearance ; that they suggest 



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a small thick snake or other evil beast, and the 

 so-called "eyes" do much to increase the deception. 

 Moreover, the segment on which they are placed is 



